There was a man who had four sons. He wanted his sons to learn not to judge things too{#blank#}1{#/blank#}(quick). So he sent them each to go and look at a pear tree that was far{#blank#}2{#/blank#}

    The first son went in the winter, the second in the spring, the{#blank#}3{#/blank#}in the summer, and the youngest son went in the autumn. When they had all{#blank#}4{#/blank#}(go) and came back, he called them together to describe what they{#blank#}5{#/blank#}(see)．

The first son said that the tree was ugly. The second son said no—it was covered with green buds and full of promise.

    The third son{#blank#}6{#/blank#}(agree). He said it was full of flowers that looked very beautiful.

    The last son said it was full of fruit.

    The man then explained to his sons that they were all wrong，{#blank#}7{#/blank#}they had each seen just one season in the tree's life.

    He told them that you cannot judge what a tree is, or how a person is，{#blank#}8{#/blank#}only one season. The{#blank#}9{#/blank#}(please), joy and love come from that life can only be measured at the end.

    If you give up when it's winter, you{#blank#}10{#/blank#}(miss)the promise of your spring, the beauty of your summer and the fruit of your fall.

    The story happened in ancient times. A king was so clever that he thought of a good way to test {#blank#}1{#/blank#} his men were reliable.

    One day, he had a huge rock{#blank#}2{#/blank#}(place) on a roadway at night. Then he hid {#blank#}3{#/blank#} (him) nearby and watched carefully to see if anyone would remove the big rock. Some {#blank#}4{#/blank#}(wealth) businessmen and high officials came by, but they simply walked around it. Many of them even loudly blamed the king for not keeping the roads clear, but none of them would bother{#blank#}5{#/blank#} (get) the big stone out of the way.

    Then a villager came along carrying a load of vegetables. On {#blank#}6{#/blank#}(approach) the big rock, he stopped and laid down his burden, trying hard to move the stone to the side of the road. After much pushing, he{#blank#}7{#/blank#}(final) succeeded. As the villager picked up his load of vegetables, he noticed a purse lying in the road where the rock{#blank#}8{#/blank#} (be). The purse contained many gold coins and a note from the king, saying that the gold was for the person{#blank#}9{#/blank#}removed the huge rock from the road.

    The villager learned a valuable lesson that many others would never understand: Every obstacle presents {#blank#}10{#/blank#} opportunity to improve one's condition.

    Increasingly, Americans are becoming their own doctors by going to diagnose their symptoms, order home health tests or medical devices, or even self-treat their illnesses with drugs from Internet pharmacies(药店).Some avoid doctors because of the high cost of medical care, especially{#blank#}1{#/blank#} they lack health insurance. Or they may stay away because they find it{#blank#}2{#/blank#}(embarrass) to discuss their weight, smoking, alcohol consumption or couch potato habits. Patients may also fear what they might learn about their health, or they distrust physicians because of negative {#blank#}3{#/blank#} (experience) in the past. But{#blank#}4{#/blank#}(play) doctor can also be a deadly game.

Every day, more than six million Americans turn to the Internet{#blank#}5{#/blank#}medical answers— and most of them aren't nearly sceptical enough of what they find. A 2002 survey by the Pew Internet &American Life Project found that 72 percent of those{#blank#}6{#/blank#}(survey) believe all or most of what they read on health websites. They shouldn't look up “headache” and the chances of finding {#blank#}7{#/blank#}(rely) and complete information, free from a motivation for commercial gain,{#blank#}8{#/blank#} (be) only one in ten, reports an April 2005 Brown Medical School study. Of the 169 websites the researchers rated, only 16 scored as “high quality”. Recent studies found faulty facts about all sorts of other disorders, causing one research team to warn that a large amount of incomplete, inaccurate and even dangerous{#blank#}9{#/blank#} (inform) exists on the Internet.

    The problem is most people don't know the safe way to surf the Web. “They use a search engine like Google, get 18 trillion choices and start clicking. But that's risky, because almost anybody can put up a site that looks authoritative ( 权威的), so it's hard to know if what you're reading is {#blank#}10{#/blank#}(reason) or not,” says Dr. Sarah Bass from the National Cancer Institute.

    In 1982, July 1^st was officially established as Canada Day. Various events are organized on this day, {#blank#}1{#/blank#}(include) parades, concerts, festivals and firework displays, {#blank#}2{#/blank#} gather Canadians of all ages across the country.

    Canada Day is the year's biggest national party. Canada's national flag can be seen everywhere and many people have their faces {#blank#}3{#/blank#} (paint) red and white, which are Canada's national colors. The {#blank#}4{#/blank#} (celebrate) in Ottawa, Canada's capital city, are especially grand and exciting.

    In Quebec, many people spend Canada Day {#blank#}5{#/blank#} (move) from one house to another. So in Quebec, Canada Day is also known {#blank#}6{#/blank#} Moving Day.

    Many organizations, businesses and stores are closed on this day. Only some bookstores, hospitals and gas stations may be open. Post offices are closed, too. As Canada Day {#blank#}7{#/blank#} (fall) during the Canadian summer holidays, all schools are closed as well. In some areas, special services {#blank#}8{#/blank#} (provide) for large events.

    The Canadians enjoy {#blank#}9{#/blank#} (they) to the full on this day. The only problem is {#blank#}10{#/blank#} the concerts, parades and festivals may cause traffic jams in some major cities.

    You may not have noticed it before, but many people often sit with a hunched (驼背的) back when they are in a difficult situation, such as trying hard {#blank#}1{#/blank#} (solve) a math problem. But there's a reason for this: this body position helps to reduce pressure.

     However, according to Erik Peper, a health professor at San Francisco State University, poor posture (姿势) may make our brains work not as well as they {#blank#}2{#/blank#} (normal) do.

    Peper and a team of researchers {#blank#}3{#/blank#} (study) 125 students' performance in a math test and their different postures. The team found that good posture—for example sitting up straight—could help people perform better {#blank#}4{#/blank#} bad posture when they feel stressed.

    Another professor Richard Harvey further explained in Science Daily that sitting with bad posture might make us feel more {#blank#}5{#/blank#} (comfort), but it actually increases our pressure levels.

    So the next time you have to take a test, try sitting upright and taking a deep {#blank#}6{#/blank#} (breathe). If Peper's study is correct, this small change may have {#blank#}7{#/blank#} great influence on you.

    There are many things {#blank#}8{#/blank#} lead to poor posture. The good news {#blank#}9{#/blank#} (be) that posture can be improved at any age by {#blank#}10{#/blank#} (make) just a few simple corrections in the way one stands, sits and moves.